Spanish Version of the System Usability Scale for the Assessment of Electronic Tools: Development and Validation

Abstract

Background The System Usability Scale (SUS) is a common metric used to assess the usability of a system, and it was initially developed in English. The implementation of electronic systems for clinical counseling (eHealth and mobile health) is increasing worldwide. Therefore, tools are needed to evaluate these applications in the languages and regional contexts in which the electronic tools are developed. Objective This study aims to translate, culturally adapt, and validate the original English version of the SUS into a Spanish version. Methods The translation process included forward and backward translation. Forward translations were made by 2 native Spanish speakers who spoke English as their second language, and a backward translation was made by a native English speaker. The Spanish SUS questionnaire was validated by 10 experts in mobile app development. The face validity of the questionnaire was tested with 10 mobile phone users, and the reliability testing was conducted among 88 electronic application users. Results The content validity index of the new Spanish SUS was good, as indicated by a rating of 0.92 for the relevance of the items. The questionnaire was easy to understand, based on a face validity index of 0.94. The Cronbach α was .812 (95% CI 0.748-0.866; P<.001). Conclusions The new Spanish SUS questionnaire is a valid and reliable tool to assess the usability of electronic tools among Spanish-speaking users.

Chinese Version of the mHealth App Usability Questionnaire: Cross-Cultural Adaptation and Validation

“…This cross-sectional, descriptive study was conducted in four large hospitals of Jinan, Shandong Province, China, from October 2020 to February 2021.The convenience sampling method was adopted to select users of the patient version of the "Good Doctor" mHealth app as research objects. Inclusion criteria were as follows: owning a smart phone and being proficient in mobile phone apps; users who aged ≥ 18, ≤ 65 years old, with good verbal and written communication skills; users who have used this app for diagnosis/treatment twice or more in the past month (Sevilla-Gonzalez et al, 2020). Exclusion criteria were as follows: language barriers or communication difficulties; being concomitant with psychiatric or neurological disorders.…”

“…The app makes it easy for me to communicate with my healthcare staff (Ivory and Marti, 2001) 0.580*** Using this app gives me more opportunities to interact with my medical staff (Peute et al, 2008) 0.622*** I trust my healthcare staff to receive any messages I send using the app (Sevilla-Gonzalez et al, 2020) 0.642*** I feel comfortable using the app to communicate with my healthcare staff (Chin et al, 1988) 0.598*** ***P < 0.001.…”

“…The usability Questionnaire is the most common tool for usability assessment, as it is user-friendly and the data analysis is intuitive ( Sevilla-Gonzalez et al, 2020 ). There are currently many usability questionnaires that are validated and reliable, such as Questionnaire for User Interface Satisfaction ( Chin et al, 1988 ),the Post-Study System Usability Questionnaire (PSSUQ) ( Lewis, 2002 ), Perceived Usefulness and Ease of Use ( Davis, 1989 ), System Usability Scale (SUS) ( Brooke, 1996 ), and Usefulness, Satisfaction, and Ease of Use Questionnaire ( Lund, 2001 ).…”

Analysis of sensorimotor control in people with and without neck pain using inertial sensor technology: study protocol for a 1-year longitudinal prospective observational study

“…28 The FACS includes 20 items, scored on a 6-point Likert scale, for a total score range from 0 to 100. Total scores indicate one of the following severity levels: subclinical (0-20); mild (21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40); moderate (41-60); severe (61-80) and extreme (81-100).…”

An Innovative Approach for Online Neuroanatomy and Neurorrehabilitation Teaching Based on 3D Virtual Anatomical Models Using Leap Motion Controller During COVID-19 Pandemic

“…It is a self-administered questionnaire of 10 Likert-type questions with 5 response options, from 1 (strongly disagree) to 5 (strongly agree) and higher scores mean a greater usability of the system ( Brooke, 2013 ). The sv-SUS is easy to understand, has shown a high internal reliability (Cronbach α-value of 0.812), and a face validity index of 0.94 ( Sevilla-Gonzalez et al, 2020 ).…”